package com.zl.controller;

import org.apache.shiro.SecurityUtils;
import org.apache.shiro.authc.IncorrectCredentialsException;
import org.apache.shiro.authc.UnknownAccountException;
import org.apache.shiro.authc.UsernamePasswordToken;
import org.apache.shiro.subject.Subject;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
public class MyController {
    @RequestMapping({"/","/index"})
    public String index(Model model){
        model.addAttribute("msg","hello word!");
        return "index";
    }

    @RequestMapping("/user/add")
    public String add(){
        return "user/add";
    }

    @RequestMapping("/user/update")
    public String update(){
        return "user/update";
    }

    @RequestMapping("/toLogin")
    public String toLogin(){
        return "login";
    }

    @RequestMapping("login")
    public String login(String username,String password,Model model){

        //获取当前的subject用户
        Subject subject = SecurityUtils.getSubject();
        //封装用户的登录数据
        UsernamePasswordToken token = new UsernamePasswordToken(username,password);

        //Shiro自动执行登录判断方法
        try {
            subject.login(token);//自动执行登录判断方法,如果没有错误就登录Ok了
            return "index";
        } catch (UnknownAccountException e) {//用户名不存在
            model.addAttribute("msg","用户名不存在");
            return "login";
        }catch (IncorrectCredentialsException e){//密码错误
            model.addAttribute("msg","密码错误");
            return "login";
        }

    }
}
